:root{--color-bg: #ffffff;--color-bg-secondary: #fafafa;--color-bg-card: #ffffff;--color-bg-elevated: #f4f4f5;--color-primary: #4f46e5;--color-primary-light: #6366f1;--color-primary-dark: #4338ca;--color-secondary: #ec4899;--color-accent: #06b6d4;--color-text: #18181b;--color-text-secondary: #52525b;--color-text-muted: #a1a1aa;--color-border: #e4e4e7;--color-border-light: #f4f4f5;--color-easy: #22c55e;--color-medium: #f59e0b;--color-hard: #ef4444;--color-success: #22c55e;--color-error: #ef4444;--gradient-primary: linear-gradient(135deg, #4f46e5, #6366f1);--gradient-card: linear-gradient(180deg, rgba(79, 70, 229, .05), transparent);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1);--shadow-glow: 0 0 40px rgba(79, 70, 229, .15);--shadow-indigo: 0 25px 50px -12px rgba(79, 70, 229, .25);--font-sans: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, 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h2{font-size:1.5rem;color:var(--color-text)}.cards-stack{flex:1;position:relative;display:flex;align-items:center;justify-content:center;margin-bottom:24px}.card-wrapper{position:absolute;width:100%;transition:all var(--transition-base)}.card-wrapper.top{position:relative}.discover-card{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:24px;box-shadow:var(--shadow-lg)}.discover-card .card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:20px}.discover-card .user-info{display:flex;gap:14px}.discover-card .avatar{width:56px;height:56px;font-size:1.4rem}.discover-card .user-details h3{font-size:1.3rem;margin-bottom:4px}.skill-badge{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;background:#4f46e526;border-radius:var(--radius-full);font-size:.85rem;color:var(--color-primary-light)}.compatibility-badge{display:flex;flex-direction:column;align-items:center;padding:12px 16px;background:var(--gradient-primary);border-radius:var(--radius-lg);min-width:70px}.compatibility-badge .percentage{font-size:1.5rem;font-weight:700}.compatibility-badge .label{font-size:.7rem;opacity:.9}.leetcode-stats{display:flex;gap:12px;margin-bottom:20px;padding:16px;background:var(--color-bg);border-radius:var(--radius-lg)}.leetcode-stats .stat{flex:1;text-align:center}.leetcode-stats .stat-value{display:flex;align-items:center;justify-content:center;gap:4px;font-size:1.3rem;font-weight:700}.leetcode-stats .stat-value.easy{color:var(--color-easy)}.leetcode-stats .stat-value.medium{color:var(--color-medium)}.leetcode-stats .stat-value.hard{color:var(--color-hard)}.leetcode-stats .stat-value.rating{color:var(--color-primary);font-size:1rem}.leetcode-stats .stat-label{font-size:.75rem;color:var(--color-text-muted)}.topics-section{margin-bottom:16px}.topics-section 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